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QuestDB

QuestDB is a high performance, open-source, time-series database

QuestDB

Banner with illustration of QuestDB, the open source time series database

QuestDB is a high performance, open-source database for time series data. It delivers ultra-low latency, high ingestion throughput, and a multi-tier storage engine. Native support for Parquet and SQL keeps your data portable, AI-ready—no vendor lock-in.

QuestDB is designed from the ground up to operate as close to the hardware as possible -- eliminating ingestion bottlenecks and lowering overall hardware requirements.

The codebase is built from scratch in zero-GC Java, C++ and Rust (QuestDB Enterprise).

To learn more about QuestDB, check the following:

Join our active public Slack and our community forum

See our public roadmap at public roadmap.

Community and Contributions

You can contribute to the QuestDB open source project: source code, documentation, bug reports, feature requests or feedback.

To get started:

  1. Good first issues
  2. Contribution guide
  3. Fork the repo and open a pull request.

We send QuestDB swag to our contributors.

🌍 Career opportunities

QuestDB is a remote-first company building high performance open-source software. We're always on the lookout for talented people to join the QuestDB team in these roles:

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  1. questdb questdb Public

    QuestDB is a high performance, open-source, time-series database

    Java 16.4k 1.5k

  2. net-questdb-client net-questdb-client Public

    C# 43 11

  3. c-questdb-client c-questdb-client Public

    Rust, C and C++ client for QuestDB InfluxDB Line Protocol

    Rust 67 23

  4. go-questdb-client go-questdb-client Public

    Golang client for QuestDB's Influx Line Protocol

    Go 63 10

  5. py-questdb-client py-questdb-client Public

    Python client for QuestDB InfluxDB Line Protocol

    Python 66 11

  6. nodejs-questdb-client nodejs-questdb-client Public

    QuestDB Node.js Client

    TypeScript 43 11

Repositories

Showing 10 of 66 repositories
  • questdb Public

    QuestDB is a high performance, open-source, time-series database

    questdb/questdb’s past year of commit activity
    Java 16,417 Apache-2.0 1,516 739 (10 issues need help) 48 Updated Dec 3, 2025
  • tsbs Public Forked from timescale/tsbs

    Time Series Benchmark Suite, a tool for comparing and evaluating databases for time series data

    questdb/tsbs’s past year of commit activity
    Go 21 MIT 339 0 1 Updated Dec 2, 2025
  • questdb/net-questdb-client’s past year of commit activity
    C# 43 Apache-2.0 11 5 0 Updated Dec 2, 2025
  • questdb_java_ha_sender Public

    HA ILP Sender for QuestDB for demo purposes

    questdb/questdb_java_ha_sender’s past year of commit activity
    Java 0 Apache-2.0 0 0 0 Updated Dec 2, 2025
  • documentation Public

    QuestDB documentation

    questdb/documentation’s past year of commit activity
    TypeScript 5 Apache-2.0 28 13 6 Updated Dec 2, 2025
  • questdb-kubernetes Public

    Configuration to run QuestDB in your Kubernetes cluster

    questdb/questdb-kubernetes’s past year of commit activity
    Mustache 36 Apache-2.0 22 1 0 Updated Dec 1, 2025
  • ui Public

    QuestDB Web Console

    questdb/ui’s past year of commit activity
    TypeScript 22 34 41 (2 issues need help) 3 Updated Dec 1, 2025
  • py-questdb-client Public

    Python client for QuestDB InfluxDB Line Protocol

    questdb/py-questdb-client’s past year of commit activity
    Python 66 Apache-2.0 11 12 (1 issue needs help) 2 Updated Nov 28, 2025
  • sql-grammar Public

    List of keywords, functions and constants that QuestDB supports

    questdb/sql-grammar’s past year of commit activity
    TypeScript 2 6 0 0 Updated Nov 24, 2025
  • demo-data Public

    QuestDb demo website injection app

    questdb/demo-data’s past year of commit activity
    Python 5 Apache-2.0 1 0 0 Updated Nov 19, 2025